US3667571A - Sound-insulating device for noisy apparatus - Google Patents

Sound-insulating device for noisy apparatus Download PDF

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Publication number
US3667571A
US3667571A US143900A US3667571DA US3667571A US 3667571 A US3667571 A US 3667571A US 143900 A US143900 A US 143900A US 3667571D A US3667571D A US 3667571DA US 3667571 A US3667571 A US 3667571A
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United States
Prior art keywords
enclosure
air
communicates
securing
cylindrical enclosure
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Expired - Lifetime
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US143900A
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English (en)
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Robert Fattelay
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B31/00—Component parts, details or accessories not provided for in, or of interest apart from, other groups
    • F01B31/005—Silencing equipment
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/025—Rock drills, i.e. jumbo drills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S173/00—Tool driving or impacting
    • Y10S173/02—Sound muffling

Definitions

  • ABSTRACT Sound-insulating device for apparatus generating intensive noise comprising a series of n impervious enclosures of increasing dimensions, the first enclosure having the smallest dimensions enclosing completely and directly the said apparatus, the second enclosure surrounding at least partially the first enclosure and so on, the means for securing the apparatus to the first enclosure and the means for securing the enclosures to one another being constituted by vibrationdamping members.
  • the present invention is directed essentially at preventing such noise and has for its object a sound-insulating device characterized in that it comprises a series of n impervious en closures of increasing dimensions, the first enclosure, having the smallest dimensions, enclosing directly the apparatus concerned, the second enclosure surrounding at least partially the first enclosure, and so on, the means for fastening the apparatus to the first enclosure and the means for fastening the enclosures to one another being constituted .by vibration damping members.
  • the device according to the invention allows to prevent or at leastconsiderably reduce air-exhaust noise, owing to the fact that the apparatus is completely enclosed therein, so that the said exhaust takes place within the enclosures constituting the said device. It also allows to reduce or at least diminish the transmission of mechanical vibrations, owing to the use of vibration damping members for connecting the apparatus with the first enclosure and connecting the enclosures with one another.
  • the first enclosure communicates with the ambient air through the medium of an air-pressure reducer.
  • Such a member while enabling the air necessary for the operation of the apparatus to be discharged into the ambient air performs the said discharge under a pressure close to atmospheric pressure, i.e., with practically-no noise.
  • the first enclosure communicates with the second enclosure which communicates with the following. enclosure and so on, the last enclosure communicating with the arnbient air through the medium of an air-pressure reducer.
  • the compressed air expands in the various successive enclosures beforeescaping to the atmosphere through the maxim of the air-pressure reducer.
  • the device comprises two coaxial cylindrical enclosure, the inner enclosure enclosing the apparatus and the outer enclosure surrounding partially the inner enclosure, the means for fastening the apparatus to the inner enclosureand the means for fastening the inner enclosure to the outer enclosure being constituted by vibration damping blocks of resilient material.
  • the outer cylindrical enclosure extends downwardly beyond the bottom wall of the inner cylindrical enclosure, the latter ending downwardly with an end-piece in the shape of a truncated cone and sealing means being provided between the said endpiece and the lower portion of the said outer enclosure.
  • the said end-piece and outer enclosure are provided at their lower ends with separate flanges or soles, the said sealing means being constituted by a resilient O-ring seal projecting between the said flanges or soles and resting directly upon the ground.
  • the said resilient O-ring seal ensures a certain imperviousnessbetween the lower portion of the device andthe more or less irregular ground, so that it muffles the noise caused by the operation of the drill or the like.
  • the invention is also directed at apparatus generating inten-' will appear as the following description proceeds.
  • the drilling apparatus indicated generally by the reference digit 1 is constituted by a compressed-air perforating hammer 2 mounted on a guide 3, the said hammer driving a bit 4 through the medium of a drilling rod 5.
  • the perforating hammer 2 is driven in translation along the guide 3 and in parallel relationship to the drilling rod 5 by means of an actuator 6.
  • the assembly constituted by the guide 3 and the hammer 2 is enclosed within afirst enclosure 10 having the shape of a circular-section cylinder and made from any material, metal,
  • the cylinder 10 is sealingly closed at its top by a cover 11 provided for instance with a seal (not shown) and at its bottom by a cover 12 provided with an orifice 13 through which the rod 5 passes.
  • the guide 3 is secured to the cylinder 10 by means of vibration damping blocks 14 made from a resilient material such as rubber or the like.
  • the cylinder 10 is itself enclosed within an enclosure constituted by a second cylinder 15 which also is circular in section but whose diameter and height are considerably superior to those of cylinder 15.
  • the cylinder 15 is made from any material, metal, plastics or the like and is sealingly closed at its top by a cover 16.
  • Both'cylinders l0 and 15 are arranged in coaxial relationship to one another through the medium of vibration damping blocks 17 which are made, like the blocks 14, from a resilient material such as rubber, the said blocks being arranged radially in the space between the said cylinders.
  • I Vents or the like, such as 18, interconnect the internal space of cylinder 10 with the internal space of cylinder 15.
  • the internal space of cylinder 15 also communicates with the ambient air through the medium of air-pressure reducers such as 19 and discharge members such as 20.
  • the cylinder 10 ends at its bottom with an end-piece 22 in the shape of a truncated cone forming at the bottom of the device a dust exhaust chamber, the said end-piece being traversed by a vacuum dust-exhauster 23 and provided at its bottom with an annular flange or sole 24 resting upon the ground.
  • the outer cylinder 15 is also provided at its bottom with an annular flange or sole 25 extending concentrically with respect to the flange 24 and also resting upon the ground, both flanges 24 and 25 being separated from one another by an empty annular space 26.
  • a flexible O-ring seal constituted for instance by a rubber air-chamber or the like 27 which, owing to the compression exerted on its flanks between the outer cylinder and the said end-piece, passes partially through the interval 26, thus forming at the bottom of the device a sort of excrescence 27a which is in contact with the ground and sealingly closes the outer cylinder 15 at its bot- .tom.
  • the excrescence 27a takes the shape of the ground on which is placed the drilling apparatus, thus preventing the noise produced by the drilling bit and rod from being transmitted outside.
  • the device is mounted on a guide 30 along which it is adapted to slide under the action of an actuator 31, the said guide being hingedly mounted at the end of a bracket 32 carried by a truck (not shown) moving on rails in two directions of a horizontal plane.
  • the excrescence 27a of the air chamber 27 also being in contact with the ground and taking the shape of its irregularities so as to isolate the drill from the exterior, the compressed air escaping from the hammer 2 expands within the cylinder 10 and then passes through the outlets or vents 18 into the cylinder 15 from which it is discharged to the atmosphere through the air-pressure reducers 18 and the discharge members 19.
  • the air is discharged to the atmosphere under a pressure close to atmospheric pressure, therefore the discharge takes place practically without noise.
  • the device according to the invention therefore enables to prevent or at least considerably reduce the noise caused by the exhaust of compressed air as well as noise of mechanical origin.
  • the space comprised between the cylinders may be filled, in case a more efiicient sound insulation is desired, with a liquid or solid substance absorbing the vibrations, for instance with water, oil, expanded polystyrene or the like.
  • the compressed air expanded within the cylinder 10 can not be discharged into the cylinder 15 as in the form of embodiment described above, and it must be discharged directly to the atmosphere through the medium of an air-pressure reducer and a discharge or outlet member. In this case, it is sufficient to connect the outlets or vents 18 directly with the discharge members 20 as shown in dash-and-dot lines on the drawing.
  • the cylindrical shape of the enclosures 10 and 15 is more particularly suitable for a drilling apparatus such as illustrated in the appended drawing, and that for a public-works machine of a different type the enclosures surrounding the machine may be given a completely different shape.
  • This shape may for instance be parallelepipedic or spherical, and the enclosures may be used in any suitable number higher than two.
  • Sound-insulating device for apparatus generating intensive noise such as drilling machines and hammer drills operating on compressed air and provided with a drilling rod, comprising a series of n impervious enclosures of increasing dimensions, the first enclosure having the smallest dimensions enclosing completely and directly the said apparatus, the
  • first vibration-damping members for securing said apparatus to said first enclosure and further vibrationdamping members for securing said enclosures to one another.
  • each one of said enclosures is provided with vent means by which it commu nicates with the following enclosure, the last enclosure being provided with air-pressure reducer means by which it communicates with the atmosphere.
  • Sound-insulating device for apparatus generating intensive noise such as drilling machines and hammer drills operating on compressed air and provided with a drilling rod
  • a drilling rod comprising an inner cylindrical enclosure having a bottom wall and enclosing said apparatus, an outer cylindrical enclosure surrounding partially said inner enclosure, first damping blocks made from resilient material for securing said apparatus to said inner cylindrical enclosure and second damping blocks made from resilient material for securing said inner cylindrical enclosure to said outer cylindrical enclosure.
  • said outer cylindrical enclosure surrounds said inner cylindrical enclosure ex- V cept the said bottom wall thereof, the latter being traversed by said drilling rod.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
US143900A 1970-11-06 1971-05-17 Sound-insulating device for noisy apparatus Expired - Lifetime US3667571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7040095A FR2112744A5 (enrdf_load_stackoverflow) 1970-11-06 1970-11-06

Publications (1)

Publication Number Publication Date
US3667571A true US3667571A (en) 1972-06-06

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ID=9063903

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Application Number Title Priority Date Filing Date
US143900A Expired - Lifetime US3667571A (en) 1970-11-06 1971-05-17 Sound-insulating device for noisy apparatus

Country Status (3)

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US (1) US3667571A (enrdf_load_stackoverflow)
FR (1) FR2112744A5 (enrdf_load_stackoverflow)
SE (1) SE398458B (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757875A (en) * 1971-11-24 1973-09-11 Kent Air Tool Co Air hammer and combined support and muffler therefor
US3975918A (en) * 1974-04-05 1976-08-24 Hollandsche Beton Groep N.V. Piledriving
US4402383A (en) * 1981-09-01 1983-09-06 Joy Manufacturing Company Drill motor enclosure
US5952623A (en) * 1998-01-13 1999-09-14 Sterling; Robert E. Pneumatic hand tool exhaust muffler
WO2000039412A3 (en) * 1998-09-29 2001-02-08 Sandvik Ab A casing for noise attenuation in a rock drilling rig and an arrangement in conjunction with a rock drilling rig
US6209678B1 (en) 1998-01-13 2001-04-03 Robert E. Sterling Pneumatic hand tool exhaust muffler
WO2002070856A1 (en) * 2001-03-07 2002-09-12 Atlas Copco Rock Drills Ab Rock drilling rig provided with a sound dampening casing
US6668971B2 (en) 1998-01-13 2003-12-30 Robert E. Sterling Pneumatic hand tool exhaust muffler having inner and outer tubes
US20040055815A1 (en) * 1998-01-13 2004-03-25 Sterling Robert E. Muffler for pneumatic hand tool
WO2006038850A1 (en) * 2004-10-07 2006-04-13 Atlas Copco Rock Drills Ab Housing arrangement
WO2006038851A1 (en) * 2004-10-07 2006-04-13 Atlas Copco Rock Drills Ab Sleeve arrangement
US7216739B2 (en) 1998-01-13 2007-05-15 Exhaust Technologies, Inc. Muffler for pneumatic hand tool
WO2008122694A1 (en) * 2007-04-04 2008-10-16 Sandvik Mining And Construction Oy Sound dampening housing for rock drill
WO2008122696A1 (en) 2007-04-04 2008-10-16 Sandvik Mining And Construction Oy Noise-dampening shield structure for rock drilling apparatus
WO2007150028A3 (en) * 2006-06-22 2008-11-06 Gunderboom Inc Sound attenuating sleeve for use on a piling
WO2011051564A1 (en) * 2009-10-28 2011-05-05 Sandvik Mining And Construction Oy Method for attaching protective structure to feed beam, and protective structure in rock drilling rig
US20120285147A1 (en) * 2009-12-04 2012-11-15 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Delivery device for delivering a reducing agent and motor vehicle having a delivery device
US8342264B1 (en) * 2009-03-09 2013-01-01 J.H. Fletcher & Co. Device for reducing drilling noise and related methods
US10125467B2 (en) * 2010-07-02 2018-11-13 Ihc Holland Ie B.V. Template for and method of installing a plurality of foundation elements in an underwater ground formation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136315A (en) * 1936-11-04 1938-11-08 Pettit Walter Richard Machine for breaking concrete
GB496454A (en) * 1938-04-05 1938-11-30 Albert Walter Christian Mandel Improvements in or relating to gas-pressure actuated percussive drills and the like
GB835713A (en) * 1956-09-26 1960-05-25 Rolf Dieterich Ehrhardt Silencer for pneumatic tools
US3332504A (en) * 1964-05-18 1967-07-25 James V Lowery Impact tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136315A (en) * 1936-11-04 1938-11-08 Pettit Walter Richard Machine for breaking concrete
GB496454A (en) * 1938-04-05 1938-11-30 Albert Walter Christian Mandel Improvements in or relating to gas-pressure actuated percussive drills and the like
GB835713A (en) * 1956-09-26 1960-05-25 Rolf Dieterich Ehrhardt Silencer for pneumatic tools
US3332504A (en) * 1964-05-18 1967-07-25 James V Lowery Impact tool

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757875A (en) * 1971-11-24 1973-09-11 Kent Air Tool Co Air hammer and combined support and muffler therefor
US3975918A (en) * 1974-04-05 1976-08-24 Hollandsche Beton Groep N.V. Piledriving
US4402383A (en) * 1981-09-01 1983-09-06 Joy Manufacturing Company Drill motor enclosure
US6209678B1 (en) 1998-01-13 2001-04-03 Robert E. Sterling Pneumatic hand tool exhaust muffler
US7216739B2 (en) 1998-01-13 2007-05-15 Exhaust Technologies, Inc. Muffler for pneumatic hand tool
US6668971B2 (en) 1998-01-13 2003-12-30 Robert E. Sterling Pneumatic hand tool exhaust muffler having inner and outer tubes
US20040055815A1 (en) * 1998-01-13 2004-03-25 Sterling Robert E. Muffler for pneumatic hand tool
US6926117B2 (en) 1998-01-13 2005-08-09 Exhaust Technologies, Inc. Muffler for pneumatic hand tool
US5952623A (en) * 1998-01-13 1999-09-14 Sterling; Robert E. Pneumatic hand tool exhaust muffler
WO2000039412A3 (en) * 1998-09-29 2001-02-08 Sandvik Ab A casing for noise attenuation in a rock drilling rig and an arrangement in conjunction with a rock drilling rig
US6199656B1 (en) 1998-09-29 2001-03-13 Sandvik Ab Casing for noise attenuation in a rock drilling rig
AU746379B2 (en) * 1998-09-29 2002-04-18 Sandvik Intellectual Property Ab A casing for noise attenuation in a rock drilling rig and an arrangement in conjunction with a rock drilling rig
DE19983531B4 (de) * 1998-09-29 2010-08-19 Sandvik Intellectual Property Ab Ummantelung zur Geräuschdämpfung bei einer Gesteinsbohrausrüstung
AU2002335495B2 (en) * 2001-03-07 2007-03-01 Epiroc Rock Drills Aktiebolag Rock drilling rig provided with a sound dampening casing
NO326289B1 (no) * 2001-03-07 2008-11-03 Atlas Copco Rock Drills Ab Bergborerigg som er forsynt med en lyddempende kappe
WO2002070856A1 (en) * 2001-03-07 2002-09-12 Atlas Copco Rock Drills Ab Rock drilling rig provided with a sound dampening casing
US7730973B2 (en) 2004-10-07 2010-06-08 Atlas Copco Rock Drills Ab Housing arrangement for a drill rig
US20090266617A1 (en) * 2004-10-07 2009-10-29 Jan Haglund Sleeve arrangement
NO325964B1 (no) * 2004-10-07 2008-08-25 Atlas Copco Rock Drills Ab Husanordning for en borerigg
EP1797275B1 (en) 2004-10-07 2019-12-18 Epiroc Rock Drills Aktiebolag Housing arrangement
EP1797275A4 (en) * 2004-10-07 2016-04-06 Atlas Copco Rock Drills Ab HOUSING ARRANGEMENT
JP2008516115A (ja) * 2004-10-07 2008-05-15 アトラス コプコ ロツク ドリルス アクチボラグ ハウジング構成体
CN101040098B (zh) * 2004-10-07 2011-07-27 阿特拉斯·科普科岩石钻探公司 壳体装置
US20080142270A1 (en) * 2004-10-07 2008-06-19 Jan Haglund Housing Arrangement
WO2006038850A1 (en) * 2004-10-07 2006-04-13 Atlas Copco Rock Drills Ab Housing arrangement
NO334312B1 (no) * 2004-10-07 2014-02-03 Atlas Copco Rock Drills Ab Hylseanordning for en borerigg
US20110114390A1 (en) * 2004-10-07 2011-05-19 Jan Haglund Sleeve arrangement
US8066086B2 (en) * 2004-10-07 2011-11-29 Atlas Copco Rock Drills Ab Sleeve arrangement
WO2006038851A1 (en) * 2004-10-07 2006-04-13 Atlas Copco Rock Drills Ab Sleeve arrangement
US7861804B2 (en) * 2004-10-07 2011-01-04 Atlas Copco Rock Drills Ab Sleeve arrangement
WO2007150028A3 (en) * 2006-06-22 2008-11-06 Gunderboom Inc Sound attenuating sleeve for use on a piling
US20100084218A1 (en) * 2007-04-04 2010-04-08 Sandvik Mining And Construction Oy Sound dampening housing for rock drill
WO2008122696A1 (en) 2007-04-04 2008-10-16 Sandvik Mining And Construction Oy Noise-dampening shield structure for rock drilling apparatus
WO2008122694A1 (en) * 2007-04-04 2008-10-16 Sandvik Mining And Construction Oy Sound dampening housing for rock drill
AU2008235376B2 (en) * 2007-04-04 2011-07-28 Sandvik Mining And Construction Oy Sound dampening housing for rock drill
JP2010523846A (ja) * 2007-04-04 2010-07-15 サンドビク マイニング アンド コンストラクション オサケ ユキチュア 削岩ドリル用遮音ハウジング
US8177023B2 (en) * 2007-04-04 2012-05-15 Sandvik Mining And Construction Oy Sound dampening housing for rock drill
EP2132396A4 (en) * 2007-04-04 2017-05-10 Sandvik Mining and Construction Oy Sound dampening housing for rock drill
US8240400B2 (en) 2007-04-04 2012-08-14 Sandvik Mining And Construction Oy Noise-dampening shield structure for rock drilling apparatus
RU2423596C1 (ru) * 2007-04-04 2011-07-10 Сандвик Майнинг Энд Констракшн Ой Звукопоглощающий кожух для перфоратора
US20100116555A1 (en) * 2007-04-04 2010-05-13 Seppo Peltola Noise-dampening shield structure for rock drilling apparatus
US8342264B1 (en) * 2009-03-09 2013-01-01 J.H. Fletcher & Co. Device for reducing drilling noise and related methods
US8631898B2 (en) 2009-10-28 2014-01-21 Sandvik Mining And Construction Oy Method for attaching protective structure to feed beam, and protective structure in rock drilling rig
AU2010311239B2 (en) * 2009-10-28 2014-03-13 Sandvik Mining And Construction Oy Method for attaching protective structure to feed beam, and protective structure in rock drilling rig
CN102597411A (zh) * 2009-10-28 2012-07-18 山特维克矿山工程机械有限公司 用于将保护结构附接到进给梁的方法、以及钻岩机中的保护结构
WO2011051564A1 (en) * 2009-10-28 2011-05-05 Sandvik Mining And Construction Oy Method for attaching protective structure to feed beam, and protective structure in rock drilling rig
US20120285147A1 (en) * 2009-12-04 2012-11-15 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Delivery device for delivering a reducing agent and motor vehicle having a delivery device
US10519831B2 (en) * 2009-12-04 2019-12-31 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Delivery device for delivering a reducing agent and motor vehicle having a delivery device
US10125467B2 (en) * 2010-07-02 2018-11-13 Ihc Holland Ie B.V. Template for and method of installing a plurality of foundation elements in an underwater ground formation

Also Published As

Publication number Publication date
FR2112744A5 (enrdf_load_stackoverflow) 1972-06-23
SE398458B (sv) 1977-12-27

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